K. V. Frolov, E. S. Smirnova, E. V. Sidorova, O. A. Alekseeva, I. A. Gudim
{"title":"57Fe Mössbauer SmFe3 - xAlx(BO3)4 （x = 0-0.28）多铁性的光谱研究","authors":"K. V. Frolov, E. S. Smirnova, E. V. Sidorova, O. A. Alekseeva, I. A. Gudim","doi":"10.1134/S0021364024604998","DOIUrl":null,"url":null,"abstract":"<p>SmFe<sub>3 –</sub> <sub><i>x</i></sub>Al<sub><i>x</i></sub>(BO<sub>3</sub>)<sub>4</sub> multiferroic single crystals with <i>x</i> = 0–0.28 have been studied in the temperature range <i>T</i> = 3.8−298 K using <sup>57</sup>Fe Mössbauer spectroscopy and X-ray diffraction analysis. An increase in the Mössbauer hyperfine quadrupole splitting with the content of aluminum <i>x</i> impurities has been found. For all studied samples, the Mössbauer Debye temperatures Θ<sub>M</sub> of iron ions have been determined in good agreement with the values for iron ions calculated from X-ray diffraction data. It has been shown that the low-temperature Mössbauer spectral lines of single crystals doped with Al in a magnetically ordered state are broadened compared to the corresponding lines of the undoped SmFe<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> ferroborate; this broadening is best approximated within the multilevel spin relaxation model. The Néel temperatures <i>T</i><sub>N</sub> of the magnetic phase transition have been determined for all studied SmFe<sub>3 –</sub> <sub><i>x</i></sub>Al<sub><i>x</i></sub>(BO<sub>3</sub>)<sub>4</sub> samples. It has been (found that the Néel temperature <i>T</i><sub>N</sub> decreases nonlinearly with an increase in the content <i>x</i> of aluminum, and the type of three-dimensional magnetic ordering changes from planar to Ising.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 2","pages":"132 - 141"},"PeriodicalIF":1.4000,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"57Fe Mössbauer Spectroscopy Study of SmFe3 – xAlx(BO3)4 (x = 0–0.28) Multiferroics\",\"authors\":\"K. V. Frolov, E. S. Smirnova, E. V. Sidorova, O. A. Alekseeva, I. A. Gudim\",\"doi\":\"10.1134/S0021364024604998\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>SmFe<sub>3 –</sub> <sub><i>x</i></sub>Al<sub><i>x</i></sub>(BO<sub>3</sub>)<sub>4</sub> multiferroic single crystals with <i>x</i> = 0–0.28 have been studied in the temperature range <i>T</i> = 3.8−298 K using <sup>57</sup>Fe Mössbauer spectroscopy and X-ray diffraction analysis. An increase in the Mössbauer hyperfine quadrupole splitting with the content of aluminum <i>x</i> impurities has been found. For all studied samples, the Mössbauer Debye temperatures Θ<sub>M</sub> of iron ions have been determined in good agreement with the values for iron ions calculated from X-ray diffraction data. It has been shown that the low-temperature Mössbauer spectral lines of single crystals doped with Al in a magnetically ordered state are broadened compared to the corresponding lines of the undoped SmFe<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> ferroborate; this broadening is best approximated within the multilevel spin relaxation model. The Néel temperatures <i>T</i><sub>N</sub> of the magnetic phase transition have been determined for all studied SmFe<sub>3 –</sub> <sub><i>x</i></sub>Al<sub><i>x</i></sub>(BO<sub>3</sub>)<sub>4</sub> samples. It has been (found that the Néel temperature <i>T</i><sub>N</sub> decreases nonlinearly with an increase in the content <i>x</i> of aluminum, and the type of three-dimensional magnetic ordering changes from planar to Ising.</p>\",\"PeriodicalId\":604,\"journal\":{\"name\":\"JETP Letters\",\"volume\":\"121 2\",\"pages\":\"132 - 141\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-03-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JETP Letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0021364024604998\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JETP Letters","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0021364024604998","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
57Fe Mössbauer Spectroscopy Study of SmFe3 – xAlx(BO3)4 (x = 0–0.28) Multiferroics
SmFe3 –xAlx(BO3)4 multiferroic single crystals with x = 0–0.28 have been studied in the temperature range T = 3.8−298 K using 57Fe Mössbauer spectroscopy and X-ray diffraction analysis. An increase in the Mössbauer hyperfine quadrupole splitting with the content of aluminum x impurities has been found. For all studied samples, the Mössbauer Debye temperatures ΘM of iron ions have been determined in good agreement with the values for iron ions calculated from X-ray diffraction data. It has been shown that the low-temperature Mössbauer spectral lines of single crystals doped with Al in a magnetically ordered state are broadened compared to the corresponding lines of the undoped SmFe3(BO3)4 ferroborate; this broadening is best approximated within the multilevel spin relaxation model. The Néel temperatures TN of the magnetic phase transition have been determined for all studied SmFe3 –xAlx(BO3)4 samples. It has been (found that the Néel temperature TN decreases nonlinearly with an increase in the content x of aluminum, and the type of three-dimensional magnetic ordering changes from planar to Ising.
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